﻿using Artech.Common;
using Artech.Common.Properties;
using Microsoft.Practices.EnterpriseLibrary.Common.Configuration;
using Microsoft.Practices.EnterpriseLibrary.Common.Configuration.ContainerModel;
using System;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.Configuration;
using System.Linq;
using System.Text;

namespace Artech.Core.Configuration
{

    /// <summary>
    /// The class is used for Service Locator configuration dynamic properties management.
    /// </summary>
    public class CustomServiceLocatorData :
        ServiceLocatorDataBase, IHelperAssistedCustomConfigurationData<CustomServiceLocatorData>
    {
        private readonly CustomProviderDataHelper<CustomServiceLocatorData> helper;

        #region Constructors
        /// <summary>
        /// Initializes a new instance of the <see cref="CustomServiceLocatorData"/> class.
        /// </summary>
        public CustomServiceLocatorData()
        { }

        /// <summary>
        /// Initializes with name and provider type.
        /// </summary>
        public CustomServiceLocatorData(string name, Type type)
        {
            helper = new CustomProviderDataHelper<CustomServiceLocatorData>(this);
            Name = name;
            Type = type;
        }

        /// <summary>
        /// Initializes with name and provider type.
        /// </summary>
        public CustomServiceLocatorData(string name, string typeName)
        {
            helper = new CustomProviderDataHelper<CustomServiceLocatorData>(this);
            Name = name;
            TypeName = typeName;
        }

        #endregion

        #region IHelperAssistedCustomConfigurationData<CustomServiceLocatorData> Members
        /// <summary>
        /// Sets the attribute value for a key.
        /// </summary>
        /// <param name="key">The attribute name.</param>
        /// <param name="value">The attribute value.</param>
        public void SetAttributeValue(string key, string value)
        {
            helper.HandleSetAttributeValue(key, value);
        }

        /// <summary>
        /// Gets or sets custom configuration attributes.
        /// </summary>
        public NameValueCollection Attributes
        {
            get { return helper.Attributes; }
        }

        /// <summary>
        /// Gets a <see cref="ConfigurationPropertyCollection"/> of the properties that are defined for 
        /// this configuration element when implemented in a derived class. 
        /// </summary>
        /// <value>
        /// A <see cref="ConfigurationPropertyCollection"/> of the properties that are defined for this
        /// configuration element when implemented in a derived class. 
        /// </value>
        protected override ConfigurationPropertyCollection Properties
        {
            get { return helper.Properties; }
        }

        /// <summary>
        /// Modifies the <see cref="CustomServiceLocatorData"/> object to remove all values that should not be saved. 
        /// </summary>
        /// <param name="sourceElement">A <see cref="ConfigurationElement"/> object at the current level containing a merged view of the properties.</param>
        /// <param name="parentElement">A parent <see cref="ConfigurationElement"/> object or <see langword="null"/> if this is the top level.</param>		
        /// <param name="saveMode">One of the <see cref="ConfigurationSaveMode"/> values.</param>
        protected override void Unmerge(ConfigurationElement sourceElement, ConfigurationElement parentElement, ConfigurationSaveMode saveMode)
        {
            helper.HandleUnmerge(sourceElement, parentElement, saveMode);
        }

        /// <summary>
        /// Resets the internal state of the <see cref="CustomServiceLocatorData"/> object, 
        /// including the locks and the properties collection.
        /// </summary>
        /// <param name="parentElement">The parent element.</param>
        protected override void Reset(ConfigurationElement parentElement)
        {
            helper.HandleReset(parentElement);
        }

        /// <summary>
        /// Indicates whether this configuration element has been modified since it was last 
        /// saved or loaded when implemented in a derived class.
        /// </summary>
        /// <returns><see langword="true"/> if the element has been modified; otherwise, <see langword="false"/>. </returns>
        protected override bool IsModified()
        {
            return helper.HandleIsModified();
        }

        /// <summary>
        /// Called when an unknown attribute is encountered while deserializing the <see cref="CustomServiceLocatorData"/> object.
        /// </summary>
        /// <param name="name">The name of the unrecognized attribute.</param>
        /// <param name="value">The value of the unrecognized attribute.</param>
        /// <returns><see langword="true"/> if the processing of the element should continue; otherwise, <see langword="false"/>.</returns>
        protected override bool OnDeserializeUnrecognizedAttribute(string name, string value)
        {
            return helper.HandleOnDeserializeUnrecognizedAttribute(name, value);
        }

        /// <summary>
        /// Gets the helper.
        /// </summary>
        CustomProviderDataHelper<CustomServiceLocatorData> IHelperAssistedCustomConfigurationData<CustomServiceLocatorData>.Helper
        {
            get { return helper; }
        }

        /// <summary>Invokes the inherited behavior.</summary>
        object IHelperAssistedCustomConfigurationData<CustomServiceLocatorData>.BaseGetPropertyValue(ConfigurationProperty property)
        {
            return base[property];
        }

        /// <summary>Invokes the inherited behavior.</summary>
        void IHelperAssistedCustomConfigurationData<CustomServiceLocatorData>.BaseSetPropertyValue(ConfigurationProperty property, object value)
        {
            base[property] = value;
        }

        /// <summary>Invokes the inherited behavior.</summary>
        void IHelperAssistedCustomConfigurationData<CustomServiceLocatorData>.BaseUnmerge(ConfigurationElement sourceElement,
                    ConfigurationElement parentElement,
                    ConfigurationSaveMode saveMode)
        {
            base.Unmerge(sourceElement, parentElement, saveMode);
        }

        /// <summary>Invokes the inherited behavior.</summary>
        void IHelperAssistedCustomConfigurationData<CustomServiceLocatorData>.BaseReset(ConfigurationElement parentElement)
        {
            base.Reset(parentElement);
        }

        /// <summary>Invokes the inherited behavior.</summary>
        bool IHelperAssistedCustomConfigurationData<CustomServiceLocatorData>.BaseIsModified()
        {
            return base.IsModified();
        }

        #endregion
    }
}